*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;

}
body{
    font-family: 微软雅黑;
    background-color: #ddd;
}
a{
    text-decoration: none;
}
li{
    list-style: none;
}
header{
    background-color: #fff;
    margin-bottom: 45px;
}
.container{
    width: 1200px;
    margin:auto;
}
header>.container{
    display: flex;  /*flex  布局*/
    justify-content: space-between; /*布局*/
    align-items: center;  /*垂直居中*/
}
.header-logo img{
    width: 114px;
    height: 43px;
    margin-left: 50px;
}
.header-right{
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.header-right ul{
    border-right: 1px solid #ccc;
}
.header-right ul li{
    display: inline-block;
}
.header-input{
    padding-left: 50px;
    line-height: 80px;
}
.header-right ul li a{
    color: #333;
    padding: 30px 28px;
    text-align: center;
}
.header-right ul li:hover a{
    color: #f8b600;
}
.header-input a:nth-child(1){
    color: #333;
    font-weight: 400;
    margin-right: 20px;
}
.header-input a:nth-child(2){
    display: inline-block;
    width: 98px;
    height: 34px;
    border: 1px solid #f8b600;
    border-radius: 4px;
    background-color: #f8b600;
    color: #fff;
    text-align: center;
    line-height: 34px;
}
.header-input .a-1:hover{
    color: #f8b600;
}
.header-input .a-2:hover{
    background-color: #f89800;
}

/*header*/

nav{
    margin: 20px;
}

/*mav*/

.banner-top{
    margin-bottom: 20px;
}
.banner-top h3{
    background-color: #999;
    padding: 10px;
    color: #333;
}
.banner-top div{
    height: 200px;
    background-color: #fff;
}
.banner-top p{
    width: 1082px;
    height: 50px;
    padding-top: 100px;
    margin-left: 50px;
    text-align: center;
    color: #999;
}
.banner-center h3{
    background-color: #999;
    padding: 10px;
    color: #333;
}
.banner-center{
    background-color: #fff;
    margin-bottom: 20px;
}
.banner-center .banner-center-center{
    width: 1082px;
    height: 363px;
    margin:auto;
    margin-top: 60px;
    display: flex;
    justify-content: space-between;
}
.banner-center-left{
    width: 480px;
    height: 363px;
}
.banner-center-left img{
    width: 295px;
    height: 224px;
    margin-left: 92px;
    margin-top: 30px;
}
.banner-center-left h4{
    color: #333;
}
.banner-center-left p{
    color: #999;
}
.banner-center-right{
    width: 480px;
    height: 363px;
}
.banner-center-right img{
    width: 478px;
    height: 57px;
    margin-top: 70px;
}
.banner-center-right h4{
    color: #333;
}
.banner-center-right p{
    color: #999;
}


.banner-bottom{
    height: 380px;
    background-color: #fff;
}
.banner-bottom .banner-bottom-center{
    width: 1082px;
    height: 363px;
    margin:auto;
    padding-top: 60px;
    display: flex;
    justify-content: space-between;
}
.banner-bottom-left{
    width: 480px;
    height: 363px;
}
.banner-bottom-left img{
    width: 295px;
    height: 224px;
    margin-left: 92px;
    margin-top: 30px;
}
.banner-bottom-left h4{
    color: #333;
}
.banner-bottom-left p{
    color: #999;
}
.banner-bottom-right{
    width: 480px;
    height: 363px;
}
.banner-bottom-right img{
    width: 478px;
    height: 57px;
    margin-top: 70px;
}
.banner-bottom-right h4{
    color: #333;
}
.banner-bottom-right p{
    color: #999;
}

/*banner*/

main h2{
    margin-top: 60px;
    padding-top: 30px;
    margin-bottom: 40px;
    text-align: center;
}
main p{
    width: 618px;
    height: 50px;
    margin: auto;
    color: #999;
}
main a{
    display: inline-block;
    margin: auto;
    margin-left: 720px;
    margin-top: 20px;
    padding: 10px 40px;
    background-color: #f8b600;
    color: #fff;
    border-radius: 5px;
}
main a:hover{
    background-color: #f89800;
}
main p:nth-child(4){
    margin-top: 20px;
    text-align: center;
    color: #333333;
}

main{
    background-color: #f5f5f5;
    position: relative;
}
main .img-1{
    position: absolute;
    left: 320px;
    top:80px;
}
main .img-2{
    position: absolute;
    left:970px;
    top:140px;
}

footer{
    height: 312px;
    background-color: #373D44;
}
.footer-top{
    height: 239px;
    border-bottom: 1px solid #4B4F55;
}
.footer-top-left{
    display: flex;
    justify-content: space-between;
}
.footer-top-left p{
    color: #fff;
    margin-top: 40px;
    margin-left: 40px;
    margin-bottom: 20px;
}
.footer-top-left a{
    color: #999999;
    margin-left: 40px;
}
.footer-top-left li{
    color: #999999;
}
.footer-top-left .p-11{
    margin-left: 0;
}
.div-right img{
    width: 120px;
    height: 120px;
    margin-bottom: 10px;
    margin-right: 90px;
    margin-top: 50px;
}
.div-right .p-12{
    font-size: 14px;
    margin-left: 18px;
    margin-top: 10px;
    color: #999999;
}
.footer-bottom p{
    color: #999999;
    text-align: center;
    font-size: 14px;
    margin-top: 25px;
}
.main-top-bottom{
    display: block;
}
.main-top-bottom li{
    width: 390px;
    height: 345px;
    text-align: center;
}

@media (max-width: 800px) {
    body{
        width: 100%;
    }
   header ul{
       display: none;
   }
    header .a-1{
        display: none;
    }
    header .a-2{

    }
    nav img{
        width: 100% ;
    }

    .banner-top{
        width: 100%;
    }
    .banner-top p{
        width: 100%;
    }
    .container{
        width: 100%;
    }
    .header-input,.banner-center-center{
        width: 100%;
    }
    .banner-center-center{
        width: 100%;
    }
    .banner-bottom-center{
        width: 100%;
    }
    .banner-center-right{
        width: 100%;
    }
    .banner-top p{
        padding-top: 30px;
        margin-left: 0;
    }
    .banner-center{
        width: 100%;
        flex-wrap: wrap;
    }

    .banner-center-left p{
        float: left;
        width: 320px;
        display: flex;
        text-align: center;
    }
    .banner-center-left img{
        margin-left: 20px;
    }
    .banner-center{
        height: 1000px;
    }
    .banner-center-right{
        margin-top: 400px;
        margin-left: -10px;
    }
    .banner-center-right p{
        width: 320px;
    }
    .banner-center-right img{
        width: 320px;
    }
    .banner-center-left h4{

    }
    .banner-center-left p{
        float: left;
        width: 320px;
        display: flex;
        text-align: center;
    }
    .banner-center-left img{
        margin-left: 20px;
    }
    .banner-center{
        height: 1000px;
    }
    .banner-center-right{
        margin-top: 400px;
        margin-left: -310px;
    }
    .banner-center-right p{
        width: 320px;
    }
    .banner-center-right img{
        width: 320px;
    }


    .banner-bottom-left h4{

    }
    .banner-bottom-left p{
        float: left;
        width: 320px;
        display: flex;
        text-align: center;
    }
    .banner-bottom-left img{
        margin-left: 20px;
    }
    .banner-bottom{
        height: 1000px;
    }
    .banner-bottom-right{
        padding-top: 400px;
        margin-left: -320px;
    }
    .banner-bottom-right p{
        width: 320px;
    }
    .banner-bottom-right img{
        width: 320px;

    }
    .banner-bottom-center{
        display: block;
        width: 320px;
        height: 800px;
        margin-left: -500px;
    }
    .banner-bottom-left{
        width: 320px;
    }
    .banner-bottom .banner-bottom-center{
        width: 100%;
    }








    main p{
        width: 100%;
        text-align: center;
    }
    main a{
       display: block;
        margin: auto;
        text-align: center;
        margin-top: 30px;
    }
    main .img-1{
        display: none;
    }
    main .img-2{
        display: none;
    }
    .banner-center .banner-center-center{
        width: 100%;
    }
    .banner-center-left{
        width: 320px;
    }
    .footer-top-left{
        flex-wrap: wrap;
    }
    .footer-top-left>div{
        text-align: center;
        width: 100%;
    }
    .footer-top-left p,.footer-top-left a{
        margin-left: 0;
       }
    .div-right img{
        margin-right: 0;
    }
    .div-right .p-12{
        margin-left: 0;
    }
    .footer-bottom{
        margin-top: 500px;
    }
    footer{
        height: 900px;
    }
    .footer-top{
        border-bottom: none;
    }
    .footer-bottom p{
        width: 180px;
        margin:auto;
        padding-top: 20px;
    }
    .banner-center-left{
        margin-left: 50px;
    }
    .banner-bottom-left{
        margin-left: 50px;
    }
}